Compute all parts of given question:

Question: An astronaut is tethered by a strong cable to a spacecraft. The astronaut and her spacesuit have a total mass of 100kg, while the mass of the cable is negligible. The mass of the spacecraft is 9.50 x 104 kg. The spacecraft is far from any large astronomical bodies, so we can ignore the gravitational forces on it and the astronaut. We also assume that both the spacecraft and the astronaut are initially at rest in an inertial reference frame. The astronaut then pulls on the cable with a force of 85.0N.

Part A: What force does the cable exert on the astronaut?

Part B: What is the astronaut's acceleration?

Part C: What force does the cable exert on the spacecraft?

Part D: What is the acceleration of the spacecraft?

I need help to find what force the cable exerts on the spacecraft.